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Author SHA1 Message Date
Michael Brown
129c6c3968 Network layer now works as a proof of concept 2006-04-28 14:13:50 +00:00
Michael Brown
1488cd3b73 Fix a couple of broken assertions, and align the buffer correctly. 2006-04-28 14:09:31 +00:00
Michael Brown
79f64eea55 Transmit the buffer contents, not the buffer descriptor... 2006-04-28 14:08:41 +00:00
Michael Brown
51feeab445 Add an explicit failure debug message 2006-04-28 14:07:41 +00:00
Michael Brown
084f6b18f7 Exclude bin directory from tags generation. 
Create something that might be usable as a symbol list for bochs'
internal debugger.
 2006-04-28 14:07:08 +00:00
Michael Brown
d8e99bf28f Gave up on adding POSIX errno's as required, and just added (almost) all 
of them in one go.

EBADIMG has been replaced by ENOEXEC, and EIMGRET by ECANCELED.
 2006-04-28 13:44:34 +00:00
Michael Brown
82c4afcb32 Updated instructions to reflect current reality. 2006-04-26 00:40:27 +00:00
Michael Brown
0eb0dd0437 Hardcoded paths to ../../src/bin avoid one step in the instructions. 2006-04-26 00:31:04 +00:00
Michael Brown
c67d81bd13 Avoid the need for a symlink to the BIOS directory; just use the locally 
checked-out copy.
 2006-04-26 00:25:28 +00:00
Michael Brown
c378213387 Much safer to use a TAP device statically allocated with tunctl. 2006-04-26 00:15:41 +00:00
Michael Brown
297ae0f8d5 Updated to syntax required by latest bochs CVS. 2006-04-26 00:14:19 +00:00
Michael Brown
18f620ca5d Updated to current bochs CVS 2006-04-26 00:09:52 +00:00
Michael Brown
cfae86f6c8 Glenn managed to shrink .text by 5 more bytes. 2006-04-25 21:48:16 +00:00
Michael Brown
fee8b91015 D'oh 2006-04-25 12:56:18 +00:00
Michael Brown
7a82c3eca3 Added missing ssize_t 2006-04-25 12:55:23 +00:00
Michael Brown
cf3783b4ca Actually, it's probably a good idea to have packet buffers avoid 4kB 
crossings.
 2006-04-25 12:11:36 +00:00
Michael Brown
00a1de964d Update to use POSIX-like API. 2006-04-25 12:04:07 +00:00
Michael Brown
face774c4c Fixed erroneous comparison 2006-04-25 11:54:58 +00:00
Michael Brown
95f8a42930 Removed incorrect comment; malloc() is inefficient only when the 
alignment and size are both powers of two, and there's no way to
specify an alignment through the malloc() interface anyway.
 2006-04-25 10:41:49 +00:00
Michael Brown
4e92f29c9e Now passes trivial tests. free_memblock() needs neatening up. 2006-04-25 04:01:58 +00:00
Michael Brown
b601a7d355 Updated memory allocator to improve support for unaligned or partially 
aligned blocks.

Moved header to include/malloc.h, since we now also provide the
POSIX-like malloc()/free() pair.

Not yet tested.
 2006-04-25 03:30:46 +00:00
Michael Brown
2f0d412210 Add __constant_flsl(), because it's useful for finding out the next 
power-of-two up from a given constant via
  ( 1 << fls ( constant - 1 ) )

fls(), flsl(), ffs() and ffsl() appear in strings.h according to
POSIX.
 2006-04-24 23:00:32 +00:00
Michael Brown
a81f96998b Added missing headers required for compilation in Etherboot. 2006-04-24 19:35:10 +00:00
Michael Brown
455b76980f Added pkb_reserve(). 2006-04-24 19:34:51 +00:00
Michael Brown
26749951dc We have our own ARP layer now. 2006-04-24 19:19:13 +00:00
Michael Brown
fcf765e42d Add missing {register,free}_netdev(). 
Tie into existing driver API; we'll fix that up soon.
 2006-04-24 18:44:50 +00:00
Michael Brown
832e86246b gcc is rather over-aggressive about optimising out static data structures 
even when __atribute__ (( unused )) is correctly set...
 2006-04-24 18:31:37 +00:00
Michael Brown
4c4e4de18f (librm_base-1b) is already an offset; no need to apply OFFSET(). 
Doing so, in fact, seems to expose an assembler bug; (a-b-0) is
apparently not the same as (a-b).  Go figure.
 2006-04-24 18:29:47 +00:00
Michael Brown
824d6ffa7f Header rearrangement. 
I want to get to the point where any header in include/ reflects a
standard user-level header (e.g. a POSIX header), while everything that's
specific to gPXE lives in include/gpxe/.  Headers that reflect a Linux
header (e.g. if_ether.h) should also be in include/gpxe/, with the same
name as the Linux header and, preferably, the same names used for the
definitions.
 2006-04-24 15:42:49 +00:00
Michael Brown
53f78346bf Network API now allows for multiple network devices (although the 
implementation allows for only one, and does so without compromising on
the efficiency of static allocation).

Link-layer protocols are cleanly separated from the device drivers.

Network-layer protocols are cleanly separated from individual network
devices.

Link-layer and network-layer protocols are cleanly separated from each
other.
 2006-04-24 15:38:53 +00:00
Michael Brown
fdc2ee79db Network API now allows for multiple network devices (although the 
implementation allows for only one, and does so without compromising on
the efficiency of static allocation).

Link-layer protocols are cleanly separated from the device drivers.

Network-layer protocols are cleanly separated from individual network
devices.

Link-layer and network-layer protocols are cleanly separated from each
other.
 2006-04-24 15:33:06 +00:00
Michael Brown
0d97f0d482 Obviate uip_init(); our bss is zeroed at startup already. 2006-04-24 15:31:02 +00:00
Michael Brown
5423f876fb Don't bother poisoning lists; it costs code size. 2006-04-24 15:28:56 +00:00
Michael Brown
1d7cfd5acf Prototype now clashes with the macro in arch/i386. 2006-04-24 15:27:58 +00:00
Michael Brown
510ccb2900 Added __constant_memcpy() based on version in Linux's string.h. 
Added memswap().
 2006-04-24 15:25:25 +00:00
Michael Brown
b6b6a0b5fe First draft of a dynamic memory allocator 2006-04-24 15:21:18 +00:00
Michael Brown
e323d1a29b Add "net" directory. 
Avoid including debug information in bin/%.s output, since the whole
point is to have easy-to-read assembler.
 2006-04-24 15:20:01 +00:00
Michael Brown
6209bd873a First sketch of a new net device API. 2006-04-19 12:07:46 +00:00
Michael Brown
bdc8190c8d Remove the concept of the media-independent link-layer header and replace 
it with metadata in the pkb structure.  This is required since UNDI will
want to be able to parse the link-layer header without destroying it.
 2006-04-19 11:32:24 +00:00
Michael Brown
b89ccac02d Updated to remove obsolete constants 2006-04-19 02:11:56 +00:00
Michael Brown
3ca7dbe7ca Added the concept of a network interface (a network-layer concept) as 
separate from a network device (a link-layer concept).
 2006-04-19 02:09:08 +00:00
Michael Brown
d65a66606b Typo 2006-04-19 02:08:27 +00:00
Michael Brown
2558439ce4 First version, based on include/linux/list.h, stripped down to just 
those functions we are likely to need.

Still need to come up with a way of getting the linker to create
static lists using this linking mechanism.
 2006-04-19 02:05:50 +00:00
Michael Brown
d24042f0bb Update now that if_ether.h has moved. 2006-04-19 01:56:10 +00:00
Michael Brown
4f3581e99c Added ENOENT and EAFNOSUPPORT 2006-04-19 01:54:53 +00:00
Michael Brown
ab139ceda9 Added pkb_unput() and pkb_len(). 2006-04-19 01:54:24 +00:00
Michael Brown
744b895077 Make flags more efficient. 
Add 'raw' net_addr facility (needed for ARP).
 2006-04-19 01:53:49 +00:00
Michael Brown
49f933fbc3 Moved if_ether.h and if_arp.h to include/gpxe, for consistency with Linux 
kernel.

Removed obsolete struct arprequest from if_arp.h and put it in nic.c so
that nic.c will still compile.  ARP will very shortly be handled by
net/arp.c instead.
 2006-04-19 01:52:41 +00:00
Michael Brown
9f67ad9db0 First version. ARP protocol independence in less than the size of uIP's 
Ethernet-and-IPv4-only ARP module.  :)
 2006-04-19 01:43:56 +00:00
Michael Brown
363905e1b6 Add missing prototype 2006-04-19 01:42:33 +00:00